Valve for gas torches



Nov. 15, 1960 H. c. GOSS 2,960,304

VALVE FOR GAS TORCHES Filed 001;. 3, 1958 INVENTOR. Herbert C.Goss

BY Wh United States Patent VALVE FOR GAS TORCHES Herbert C. Goss,Glenshaw, Pa., assignor to Gas Gas, Inc., Glenshaw, Pa., a corporationof Pennsylvania Filed Oct. 3, 1958, Ser. No. 765,168

2 Claims. (Cl. 251-276) My invention relates to valves that areparticularly suitable for use with blow torches and the like.

One object of the invention is to provide a structure wherein the flowof gas may be controlled more safely than in the case of various priordevices of this character.

More specifically stated, my object is to provide a valve wherein thevalve may be operated in such manner as to permit passage of onlysuflicient gas to a burner tip to serve as a pilot flame and whereby thevalve can be opened more fully to admit the flow of a working supply ofgas to a burner tip.

As shown in the accompanying drawing:

Figure 1 is a side view of the valve.

Fig. 2 is an exploded view of the various valve parts.

Fig. 3 is a vertical sectional view of the valve on an enlarged scale,with the valve open for only a restricted flow of gas.

Fig. 4 is a view showing the valve fully open.

Fig. 5 is a view taken on the line VV of Fig. 3.

The valve controls flow of gas from a supply pipe 6 to a dischargeconduit 7 that is connected to a suitable burner. The line 6 extendsthrough a handle 8 and discharges into a valve body 9 that has an inletport 10 and an outlet port 11.

A valve seat 12 is provided with a port that aifords communicationbetween the ports 10 and 11. The flow of gas being controlled by a valve13 that is urged toward closed position by a spring 1 4 which seats upona bottom cap 15 for the valve body. The valve 13 is actuated by aknurled thumbpiece 16 which serves also as a push button. The member '16tightly fitted to a shank 17 that is centrally bored to receive the stem18 of the valve 13. A valve bonnet 19 is threaded into the upper end ofthe valve body 9 and has a packing gland or nut 20 that compressespacking ring 21.

A threaded collar 22 is non-rotatably supported in the valve bonnet 19but is vertically slideable therein when the button 16 is depressedagainst the spring 14 to move the valve from the slightly open positionof Fig. 3 to the fully operative position of Fig. 4.

When the operator wishes to initiate a flame cutting operation, he willturn the button 16 to efiect movement of its shank 17 downwardly, byreason of its threaded connection with the collar 22. Such rotativemovement of the button permits a small amount of gas to flow, and thusprovides for a pilot flame which will not be so dangerous to theoperator as if he attempted to light a full flow of gas at the tip. Whenthe pilot flame has 2,960,304 Patented Nov. 15, 1960 been lit, theoperator will depress his thumb against the button 16, moving it fromthe position shown in Fig. 3 to that shown in Fig. 4, the collar 22being free to slide downwardly during this movement. Bosses 12a serve asstops to limit downward movement of the valve operating member 17 tothereby prevent cutting off of gas flow when said member is depressed.

The convenience and safety of my valve structure arises out of the factthat the operator, while grasping the handle 8, can use his thumb inengagement with the knurled edge of the button 16, rotating it slightlyto gradually open the valve, through downward movement of the shank 17in the collar 22. He thereby avoids danger of too quick initial openingof the valve preliminary to lighting a pilot flame at the burner. Ofcourse, thereafter, he will shift his thumb to the top of the button 16and press it downwardly to the desired distance.

I claim as my invention:

1. Valve apparatus for controlling flow of fluids, that comprises avalve body, a handle rigidly connected at one end to the valve body andbeing in the form of a grip member for grasping by the hand of theoperator, the valve body having an inlet port through which fluid willenter, and having an outlet port, a valve seat disposed between theinlet and outlet ports and having a valve port therethrough thatprovides communication between the inlet and outlet ports, a valvebetween the inlet port and the valve seat and movable to open and closethe valve port, a spring yiel'dably holding the valve against the sideof the seat which is adjacent to the inlet port, and in closed relationto the valve port, a valve stem carried by the valve and extending in adirection at right angles to the axis of said handle, a valve-operatingmember coaxial with the stem and extending inwardly from a pointexteriorly of the valve body and rotatable on the valve stem and alsomovable axially inward to move the valve to open position against thespring, the said member being also axially shiftable in the valve bodythrough threaded engagement thereof with a nut that is non-rotatablymounted in the valve body and is movable axially with the operatingmember, means carried by the valve body for limiting the extent of axialmovement of said nut, the said spring urging the valve, its stem and thevalve-operating member outwardly, and a thumb-operative disc on theouter end of the valveoperating member, in position to be rotated by thethumb of an operator who holds the handle, to effect slow opening of thevalve through turning of said threaded connection, the disc when pressedinwardly by the operators thumb, serving to depress the valve againstthe spring, for quick opening movement.

2. Valve apparatus as recited in claim 1, wherein the handle is tubularco-axial with the inlet and outlet ports and serves as a conduit forflow of gas into theinlet port.

References Cited in the file of this patent UNITED STATES PATENTS815,179 Knoderer Mar. 13, 1906 1,544,219 Collar June 30, 1925 2,013,822Bradbury Sept. 10, 1935 2,388,327 Jacobsson et al. Nov. 6, 19452,605,077 Hay July 29, 11952

